package _16define;

public class Demo {
    public static void main(String[] args) {
        Student s1 = new Student("zs");
        Student s2 = new Student("zs");
        System.out.println(s1.hashCode());
        System.out.println(s1.hashCode());
        System.out.println(s2.hashCode());
    }
}
class Student{
    String name;

    public Student(String name) {
        this.name = name;
    }
}
